Yolton D P
J Am Optom Assoc. 1983 Feb;54(2):135-8.
Calcium metabolism was assessed in 18 keratoconic and 18 age- and sex-matched control subjects using four types of analyses: diet, serum, urine and hair. There was no significant difference between the two groups for dietary intake, serum, urine and hair parameters of calcium, and related minerals. Although the control group had a higher daily intake of vitamin D than did the keratoconus group, the serum levels of the active vitamin D hormone, 1,25-(OH)2 vitamin D3, were the same in both groups. These findings suggest that systemic calcium or vitamin D metabolic imbalances are not involved in maintaining eyes in a keratoconic state.
采用饮食、血清、尿液和毛发这四种分析方法，对18名圆锥角膜患者以及18名年龄和性别匹配的对照受试者的钙代谢情况进行了评估。两组在钙及相关矿物质的饮食摄入量、血清、尿液和毛发参数方面均无显著差异。尽管对照组的维生素D每日摄入量高于圆锥角膜组，但两组中活性维生素D激素1,25-(OH)2维生素D3的血清水平相同。这些研究结果表明，全身性钙或维生素D代谢失衡与圆锥角膜状态的维持无关。
